// Copyright (c) Six Labors.
// Licensed under the Six Labors Split License.

namespace SixLabors.Fonts {
  /// <summary>
  /// Describes one source-order Unicode word-boundary segment run.
  /// </summary>
  internal readonly struct WordSegmentRun
  {
      /// <summary>
      /// Initializes a new instance of the <see cref="WordSegmentRun"/> struct.
      /// </summary>
      /// <param name="graphemeStart">The inclusive grapheme insertion index where the word-boundary segment starts.</param>
      /// <param name="graphemeEnd">The exclusive grapheme insertion index where the word-boundary segment ends.</param>
      /// <param name="stringStart">The inclusive UTF-16 index where the word-boundary segment starts.</param>
      /// <param name="stringEnd">The exclusive UTF-16 index where the word-boundary segment ends.</param>
      public WordSegmentRun(
          int graphemeStart,
          int graphemeEnd,
          int stringStart,
          int stringEnd)
      {
          this.GraphemeStart = graphemeStart;
          this.GraphemeEnd = graphemeEnd;
          this.StringStart = stringStart;
          this.StringEnd = stringEnd;
      }

      /// <summary>
      /// Gets the inclusive grapheme insertion index where the word-boundary segment starts.
      /// </summary>
      public int GraphemeStart { get; }

      /// <summary>
      /// Gets the exclusive grapheme insertion index where the word-boundary segment ends.
      /// </summary>
      public int GraphemeEnd { get; }

      /// <summary>
      /// Gets the inclusive UTF-16 index where the word-boundary segment starts.
      /// </summary>
      public int StringStart { get; }

      /// <summary>
      /// Gets the exclusive UTF-16 index where the word-boundary segment ends.
      /// </summary>
      public int StringEnd { get; }
  }
}